element x is a neutral element and has 39 protons. what element is it and how many electrons does it have? (use the periodic table)

Briefly describe the solvation of sodium chloride to form aqueous solution.

What is the process that allows the nucleus of an atom to become more stable?

Elements Electronegativity aluminum (Al) 1.61 calcium (Ca) 1 carbon (C) 2.55 chlorine (Cl) 3.16 fluorine (F) 4 hydrogen (H) 2.2 iron (Fe) 1.83 nitrogen (N) 3.04 oxygen (O) 3.44 phosphorus (P) 2.19 potassium (K) 0.82 silicon (Si) 1.9 sulfur (S) 2.

is a measure of the quantity of matter in an object. A) Volume B) Mass C) Density D) Weight

What patten emerges over time as the plates spread apart forming new rock?

When can polar bears take care of themselves

What are two objects used to find density

A sample of oxygen gas (O2) at STP has a mass of 48.0 grams. What is the volume of the gas?

What is the oxidation number for Our in NaHCO3?

To determine if a reaction is exoteric a student should use